Category: pyridine-derivatives

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Product Details of C6H4BrNO.

Zhang, Ya-Wen;Bai, Sha;Wang, Yao-Yu;Han, Ying-Feng research published 《 A Strategy for the Construction of Triply Interlocked Organometallic Cages by Rational Design of Poly-NHC Precursors》, the research content is summarized as follows. Three-dimensional (3D) triply interlocked catenanes are a family of chem. topologies that consist of two identical, mech. interlocked coordination cage components with intriguingly complex structures. Although only a few successful constructions of 3-dimensional interlocked catenanes were achieved to date via metal-mediated assembly, these complex structures have thus far only been targeted by metal-N/O coordination techniques. Here, taking advantage of rational ligand design, the authors report the efficient construction of 3-dimensional triply interlocked [2]catenanes [Ag₃L₂]₂, wherein the metal ions exclusively form bonds to N-heterocyclic carbene (NHC) units, and their subsequent transmetalation to the corresponding [Au₃L₂]₂ Au analogs. The formation and transmetalation reactions proceed under mild conditions and are generally applicable. Characterization techniques were applied to confirm the formation and structure of the desired 3-dimensional triply interlocked architectures: multinuclear NMR spectroscopy, ESI-MS, and single-crystal x-ray diffraction anal. The solid-state structure of [Ag₃(1a)₂]₂(PF₆)₆ unambiguously confirms the existence of a 3-dimensional catenane that consists of two identical, mech. interlocked trinuclear hexacarbene cage components. The interlocking of two 3-dimensional cages into a [2]catenane is driven by the efficient π···π stacking of triazine-triazine stacks with cooperative interactions between imidazo[1,5-a]pyridine subunits. Notably, the triply interlocked organometallic cages exhibit good stability toward various organic solvents, concentrations, and temperatures, and no disassembly occurred in the presence of coronene or pyrene. The future construction of mech. interlocked architectures using metal-carbene bonds rather than metal-N bonds may provide assemblies with interesting properties for as-yet-unimagined applications in fields such as sensors and mol. elec. conductors.

Product Details of C6H4BrNO, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., 31181-90-5.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 1603-41-4, formula is C6H8N2, Name is 2-Amino-5-methylpyridine. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Reference of 1603-41-4.

Zhang, Yi;Chen, Rener;Wang, Zhiming;Wang, Lei;Ma, Yongmin research published 《 I₂-Catalyzed Three-Component Consecutive Reaction for the Synthesis of 3-Aroylimidazo[1,2-a]-N-Heterocycles》, the research content is summarized as follows. A convenient one-pot, three-component reaction has been developed for the synthesis of 3-aroylimidazo[1,2-a]-N-heterocycles from aryl ketones and 2-amino-N-heterocycles using DMSO as a methylene donor. The reaction proceeds smoothly catalyzed by I₂ in the presence of K₂S₂O₈ and affords the desired products in moderate to good yields. This protocol offers significant superiority in accessing biol. active 3-aroylimidazo[1,2-a]-N-heterocycles with various substitution patterns.

Reference of 1603-41-4, 2-Amino-5-methylpyridine, also known as 2-Amino-5-methylpyridine, is a useful research compound. Its molecular formula is C6H8N2 and its molecular weight is 108.14 g/mol. The purity is usually 95%.
2-Amino-5-methylpyridine is a chemical compound that belongs to the group of methyl ketones. It has a nitrogen atom and an oxygen atom in its structure, which allows it to form hydrogen bonds with other molecules. 2-Amino-5-methylpyridine can be obtained by reacting hydrochloric acid and xanthone in the presence of a base. The compound is highly reactive and has been shown to have antiinflammatory properties. This can be attributed to its ability to inhibit prostaglandin synthesis. 2-Amino-5-methylpyridine also has fluorescence properties that are sensitive to pH changes and can be used as a probe for metal ions. 2-Amino-5-methylpyridine is an organic compound that contains a methyl group, two nitrogen atoms, and one oxygen atom in its chemical structure. This molecule can form hydrogen bonds with other molecules due to its nitrogen atoms and oxygen atom,, 1603-41-4.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. 5315-25-3, formula is C6H6BrN, Name is 2-Bromo-6-methylpyridine. For this reason, pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Name: 2-Bromo-6-methylpyridine.

Zhang, Yufeng;Du, Xianchao;Chen, Long;Li, Zixiu;Wang, Wenji;Li, Tianbao;Yuan, Mao-Sen research published 《 Tri-(2-picolyl)amine-modificated triarylborane: Synthesis, photophysical properties and distinguish for cyanide and fluoride anions in aqueous solution》, the research content is summarized as follows. We designed and synthesized a tri-(2-picolyl) amine (TPA) functionalized triarylborane, 1-(6-(4-(dimesitylboryl)phenyl)pyridin-2-yl)-N,N-bis(pyridin-2-ylmethyl)methanamine (PB2). The photophys. properties of PB2 were thoroughly explored. Moreover, PB2 can capture CN^– and F^– in aqueous solution through strong chelation induced by the synergy of a boron atom and metal ion gripped by TPA to display entirely different fluorogenic responses such as fluorescence enhancement for CN^– and fluorescence quenching for F^–. The results of TOF-MS-EI anal. and theor. calculations indicate that the complexing of PB2 with CN^– formed a 2-to-2 adduct with a stabilized configuration, resulting in strong emission. The complexing of PB2 with F^– formed a 1-to-1 adduct with a loose configuration, resulting in weak emission. In pure water, the detection limit of PB2 for CN^– is 0.79 μM, and in H₂O/THF (1:9 volume/volume) system, the detection limits of PB2 for CN^– and F^– can reach 0.39 and 2.12 μM, resp., indicating its potential application for effective detection and discrimination of CN^– and F^–.

Name: 2-Bromo-6-methylpyridine, 2-Bromo-6-methylpyridine (2BMPy) is a bromopyridine derivative. It is formed when 2-chloro-6-methylpyridine is heated with bromotrimethylsilane. Its synthesis from various methods have been reported.
2-Bromo-6-methylpyridine is a building block in the preparation of nitrogen containing heterocyclic compounds.
2-Bromo-6-methylpyridine is an organic compound that belongs to the group of pyridinium halides. It is soluble in common solvents such as water, ethanol, and acetone. 2BMPy has been shown to act as a glutamate receptor antagonist and has been used in the study of glutamate receptors, including their subtypes. This chemical has also been shown to have antioxidant properties and can be used in the prevention of atherosclerosis., 5315-25-3.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Safety of 5-Bromopicolinaldehyde.

Zhao, Bing;Zhang, Xinhui;Yu, Tingting;Liu, Ying;Zhang, Xiaoling;Yao, Yongfang;Feng, Xuejian;Liu, Hongmin;Yu, Dequan;Ma, Liying;Qin, Shangshang research published 《 Discovery of thiosemicarbazone derivatives as effective New Delhi metallo-β-lactamase-1 (NDM-1) inhibitors against NDM-1 producing clinical isolates》, the research content is summarized as follows. In this study, structure-activity relationship based on thiosemicarbazone derivatives (E)-R¹C(S)NHN=C(R²)(R³) (I) (R¹ = phenylamino, Ph, cyclohexylamino, morpholin-4-yl, etc.; R² = H, Me; R³ = Ph, pyridin-2-yl, 3,4,5-trimethoxyphenyl, etc.) was systematically characterized and their potential activities combined with meropenem (MEM) were evaluated. Compounds (I).HCl [R¹ = piperazin-1-yl, R² = H, R³ = 2-hydroxyphenyl (II); R¹ = 4-methylpiperazin-1-yl, R² = H, R³ = 2-hydroxyphenyl (III)] exhibited excellent activity against 10 NDM-pos. isolate clin. isolates in reversing MEM resistance. Further studies demonstrated that compounds II and III were uncompetitive NDM-1 inhibitors with Ki = 0.63 and 0.44μmol/L, resp. Mol. docking speculated that compounds II and III were most likely to bind in the allosteric pocket which would affect the catalytic effect of NDM-1 on the substrate meropenem. Toxicity evaluation experiment showed that no hemolysis activities were found even at concentrations of 1000 mg/mL against red blood cells. In vivo exptl. results showed that a combination of MEM and compound III was markedly effective in treating infections caused by NDM-1 pos. strain and prolonging the survival time of sepsis mice. The finding showed that compound III might be a promising lead in developing new inhibitor to treat NDM-1 producing superbug.

31181-90-5, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., Safety of 5-Bromopicolinaldehyde

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Reference of 766-11-0.

Zhou, Bin;Liang, Xiaofei;Mei, Husheng;Qi, Shuang;Jiang, Zongru;Wang, Aoli;Zou, Fengming;Liu, Qingwang;Liu, Juan;Wang, Wenliang;Hu, Chen;Chen, Yongfei;Wang, Zuowei;Wang, Beilei;Wang, Li;Liu, Jing;Liu, Qingsong research published 《 Discovery of IHMT-EZH2-115 as a Potent and Selective Enhancer of Zeste Homolog 2 (EZH2) Inhibitor for the Treatment of B-Cell Lymphomas》, the research content is summarized as follows. The enhancer of zeste homolog 2 (EZH2) is the catalytic subunit of polycomb repressive complex 2 that catalyzes methylation of histone H3 lysine 27 (H3K27). Overexpression or mutation of EZH2 has been identified in hematol. malignancies and solid tumors. Based on the structure of EPZ6438 (1) and the binding model with PRC2, we designed a series of analogs aiming to improve the activities of EZH2 mutants. Structure-activity relationship (SAR) exploration at both enzymic and cellular levels led to the discovery of inhibitor 29. In the biochem. assay, 29 inhibited EZH2 (IC₅₀ = 26.1 nM) with high selectivity over other histone methyltransferases. It was also potent against EZH2 mutants (EZH2 Y641F, IC₅₀ = 72.3 nM). Furthermore, it showed no apparent inhibitory activity against the human ether-á-go-go related gene (hERG) (IC₅₀ > 30μM). In vivo, 29 exhibited favorable pharmacokinetic properties for oral administration and showed better efficacy than 1 in both Pfeiffer and Karpas-422 cell-mediated xenograft mouse models, indicating that it might be a new potential therapeutic candidate for EZH2 mutant cancers.

Reference of 766-11-0, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 5315-25-3, formula is C6H6BrN, Name is 2-Bromo-6-methylpyridine. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Recommanded Product: 2-Bromo-6-methylpyridine.

Zhou, Min;Tsien, Jet;Qin, Tian research published 《 Sulfur(IV)-Mediated Unsymmetrical Heterocycle Cross-Couplings》, the research content is summarized as follows. Despite the tremendous utilities of metal-mediated cross-couplings in modern organic chem., coupling reactions involving nitrogenous heteroarenes remain a challenging undertaking – coordination of Lewis basic atoms into metal centers often necessitate elevated temperature, high catalyst loading, etc. Herein, the authors report a sulfur (IV) mediated cross-coupling amendable for the efficient synthesis of heteroaromatic substrates. Addition of heteroaryl nucleophiles to a simple, readily-accessible alkyl sulfinyl (IV) chloride gave a trigonal bipyramidal sulfurane intermediate. Reductive elimination therefrom provides bis-heteroaryl products in a practical and efficient fashion.

Recommanded Product: 2-Bromo-6-methylpyridine, 2-Bromo-6-methylpyridine (2BMPy) is a bromopyridine derivative. It is formed when 2-chloro-6-methylpyridine is heated with bromotrimethylsilane. Its synthesis from various methods have been reported.
2-Bromo-6-methylpyridine is a building block in the preparation of nitrogen containing heterocyclic compounds.
2-Bromo-6-methylpyridine is an organic compound that belongs to the group of pyridinium halides. It is soluble in common solvents such as water, ethanol, and acetone. 2BMPy has been shown to act as a glutamate receptor antagonist and has been used in the study of glutamate receptors, including their subtypes. This chemical has also been shown to have antioxidant properties and can be used in the prevention of atherosclerosis., 5315-25-3.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem